Question

The type of joint between the human skull bones is called-
A. Cartilaginous joint
B. Hinge joint
C. Fibrous joint
D. Synovial joint

Answer 1

Hint: Skull serves the purpose of protection of the brain as it is a delicate and smooth organ. The joint present in the skull need not move or displace from a place as the skull does not perform any kind of movements. Instead the joint needs to provide strength to the bones to remain attached with each other strongly.

Complete answer:Joints are nothing but the location at which two bones get attached with each other. The classification of joints is done on the basis of the tissue they contain and the degree of mobility they allow. Depending upon composition, joints are divided as fibrous, cartilaginous and synovial. Cartilaginous joints are made up of cartilaginous tissues. These types of joints provide stability and a little movement and are located at the spine and pelvis. Synovial joints are characterized by having a fluid-filled cavity that helps one bone to move over the other and provide maximum movement. Such joints are present in the arms and legs for maximum movement and flexibility. Fibrous joints are connected by thick fibrous tissue and they do not allow movement. Because of this, one part of the skull remains tightly attached to another and thus protects the brain and helps to form a face by being immovable. Fibrous joints impart strength and stability rather than flexibility and movement. Skull is the protective bony box that covers the brain. It is concerned more with strength rather than with movement.
Thus the correct answer is C. fibrous joint
Additional information: fibrous joints are also called fixed or immovable joints. A special type of fibrous joint which is only found in the skull of the brain is called sutures. Before a baby is born, its sutures are unfused so that the skull can be compressed a bit during birth. Once the baby is born, the sutures eventually fuse and form a strong skull that protects the brain.

Note: The types of joints present at a particular location or organ depends largely on the function that particular organ performs and also on the degree of movement that organ requires. The parts of the body which do not generally exhibit any movement have fibrous joints in them.